Autumn Rose Lake Dam

LITTLE CACHE CREEK· Johnson, Illinois· Built 1998· Earth· 32 ft tall
Significant Hazard Recreation Private

Key Takeaway

Autumn Rose Lake Dam is classified as significant hazard in Illinois. It was completed in 1998 and is 28 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 32 ft (taller than 69.5% in IL)
Dam Length940 ft
Dam TypeEarth
Max Storage180 acre-ft
Normal Storage135 acre-ft
Surface Area14 acres
Drainage Area13 sq mi
Max Discharge18 cfs
Year Completed1998 (28 years old)
NID IDIL50384

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 28, 2018
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

GOLDEN HAWK ENTERPRISES

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Autumn Rose Lake Dam?

Autumn Rose Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Autumn Rose Lake Dam?

Autumn Rose Lake Dam is owned by GOLDEN HAWK ENTERPRISES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Autumn Rose Lake Dam built?

Autumn Rose Lake Dam was completed in 1998, making it 28 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Autumn Rose Lake Dam?

Autumn Rose Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Autumn Rose Lake Dam?

Autumn Rose Lake Dam has a dam height of 32 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Autumn Rose Lake Dam last inspected?

Autumn Rose Lake Dam was last inspected on June 28, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.